I think I've discovered the secret of life -- you just hang around until you get used to it.

In Schulz’s characteristic deadpan, the line treats “the secret of life” not as a grand revelation but as acclimation: living long enough to become familiar with uncertainty, disappointment, and routine. The humor comes from deflating existential ambition—there may be no single key, only the slow work of endurance and adaptation. Read this way, the quote suggests a modest, pragmatic wisdom: meaning is less discovered than accumulated through time, persistence, and learning to tolerate life’s oddness. It also echoes the Peanuts ethos, where small daily struggles and resilient continuation often matter more than triumphant resolutions.